Corrugated sheet-metal door for railway cars of the dumping type



e. e. GILPI'N. METAL DOOR FOR RAILWAY-CARS 0`F THE DUIVIPING TYPE.

, APP'ucATloN mib Nov. |4.'v1919. L43,81 l f coRRuGATED SHEET Patented Oct.. 31, 1922.

G. G.'GILPIN. Y i coRRuGATEn SHEET METAL DoR Toa RMLWAY cARs v0E THE DUMPTNG TYPE,l

Patented Oct. 31', 1922'.

2 SHEES-SHEET 2.

APPLICATION FILED, NOV. I4, 1.919.

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.application tiled November Lt, wir. 'Serial Ito. dthan' To all 'whom t may concern:

Be it known that ll, Gratin G. Guarini,

a citizen of the United States, residin at Riverside, in the county of @ook and tate.

oi llllinois, have invented certain new and useful lmprovements in Corru ated Sheet- Metal Doors tor Railway (Jars of the Dumping Type, oi" which the following is a specification. w

My invention relates to the construction of railway freight cars of the dumping-type.

and has for its principal object" to provide an. improved sheet metal door for cars of this type, more especially :tor cars known as general service ears, (intended to serve as ordinary 'gondola cars for the transportation ot miscellaneous reht, as Well as bulk loads that can be dumpe .-1 having reinforcing ribs or corrugations so formed that the corrugations providemaximum strength and rigidty to the body and marginal port-ions oit the' door. l My invention .provides an improved reinforced door of the above character having corrugations which are pressed so that they project alternately above and below the original plane of the sheet. Certain of the corrugations are made relatively long so as to extend close to the margins of the door to provide maximum rigldity.- The con fgurations of the corrugations and margin-" -corrugation's` 'llhe upwardly projecting corrugations re so formed that their crests are substantiI lly flush with the ooring of the ear when the door is closed. en a car, having doors of thisv construction, is loaded with articles, such as rails, machinery, or the like, these articles will not be supported entirely by the doors of the car, but will Joe supported in part by the cross framing and other parts of the dooring of the car.

I'llhe invention-consists in the novel and improvedarrangeinent and construction of parts, to be 'hereinafter described and claimed, for carrying out the above stated objects and such other incidental objects as will appear from the following description.

My invention 'is illustrated in' a preferned embodiment of the accompanying drawings, wherein lFig. l is a plan View et .a doer panel 7formed in'accordance with my invention.

vice type, and

the center sill, .mally closed by 'vention and which,

rsuitable for use in a car of with dumping cars'where similar conditions' portion 55 thereof which bears .Fig 2 isas'ectional view on line otv Fig. i, showing the doors operatively con'- nected to the under-.framing of the car body. l

Fig. 3 is'a detail sectional plan showing the attachment of a 'reinforcing member to the dange of the door sheet.

1g. i is an end elevation oit` the door with part of the car in. section.

Figs.. 5, 6 and 7 are sectional views on lines.l 5 5, 6-6, and 7 7 oi Fig. l, and

Fig. 8 isa side elevation of the door withl portions in section.

2 Like characters ot reference desiate like parts. 1n the several figuresl of the rawins.

the center sill of la and the ooring provided with a numberv eferring to the drawings, .l0 indicates I a car of the general serv- 12 the side sheathing. llt will be .understood that the car-under-framing, l

of dumping openings on opposite; sides ot 'these openings being norfhinged ,bottom sections or doors l which are manipulated .by appara?- tus which forms n o'part of the present intherefore, has been o mitted from. the drawinga, rllhis invention' concerns the construction oit a door this type, vor

prevail.

The door consists or a sheet metal 'panel 46, preferably, although not necessarily, composed of a` single sheet of metal. The door sheet, as it may be termed, to the center sill l0 (the hinges being indicated at 49). The end marginal ortions 56,' 57 of the door sht and the si e marginal against the under side of the inturned part of the side sheet 12 are in the'same plane and are referably formed with downturned rigidi ying Hanges. The door panel 46 is reinforced by a pair of Z-bars 4:7, 48 on the under side of the corrugated plate, these Z-bars running in the direction transverse to the corrugations and being located near the ends of the same so as to stiften the panel longitndinallyV of the car so as to prevent sagging under the load. The hinge straps i9 are preferably ator both of the Z-bars may be kept from rois hinged tached by rivets 50 to the Z-bar 48. Either lll@ tating by suitable vrestraining devices. l have shown the Z-bar i7 as restrained at substantially its middle point by a short strap or bracket 5l'of -section riveted to the door panel at 52 and to the Z-bar a7 at 53. lhat is, the center portion of the -bar is in effect given a channel formation. at its center. The door panel is formed with corrugations 54, which project above the original plane of the panel, the plane of the marginal portions 55, 56, 57, so that their crests are substantially flush with the flooring of the car when the door is closed and have an alternating arrangement with corrugations 58 depressed below the original plane of the sheet. All of the upstanding corrugations except the two at opposite ends of the door,l

which have been designated 54, extend at the side of the margin 55 beyond. the Z-bar 47, as indicated at 59, while the depressed corrugations 58 and the end upstanding corrugations 54a terminate short of the place Where the Z-bar 47 is attached to tblesheet., rlhe marginal portion 60 on the hinged side of the door is pressed down below margins 55, 56, 57 to the level of the bottoms of the depressed corrugations 58. By this arrangement any moisture will drain oft' along the depressed edge 60 of the panel instead of being trapped, as would be the case, if both ends of the corrugations were below the adjacent uncorrugated margins. rlhe corrugations are made to terminate wit-hin the edges of ,the sheet so that they will give rigidity. The extremities of the marginal portions 56--57 adjacent the center sill are depressed, as indicated at 49a tothe level of the marginal'portio-n 40 of the sheet. 'lhis configuration of the sheet adapts it to lit snugly into place under the center sill and side sheets of the car; Preferably the Zbar 47 is fastened at its extremities to the end flanges 61 of the door panel by means of angular gussets 62 (Fig. 3). By the disposition of corrugations and of reinforcing means just described, the free edge of the door, which is, of course, particularly subject to defectionand warping, is made very ri `d.

claim:-

1. ln combination with a railway car having a dumping opening in the bottom, a Sheet metal door for closing said openingformed with corrugations which alternately project. above and below a flat marginal portion of the door sheet, and a reinforcing element on the under side of the sheet adjacent said marginal portion and lying transversely to said corrugations, the npstanding corrugations extending over said reinforcing element and the depressed corrugations terminating short of the saine.

2. ln combination with a railway car having a dumping opening in the bot-torn, a sheet metal door for closing said opening door and a web projecting therefrom, and a retaining device to prevent the tendency of said reinforcing member to rotate on its longitudinal axis.

. 3. ln combination with a railway car hav.- ing a dumping opening, sheet metal door to close said. opening formed with a 4plurality of rigidifying ribs consisting of relatively long ribs and shorter ribs disposed in alternate arrangement across the sheet and terminating within the edges of said sheet, said sheet being formed so that portions of the corrugations project below the plane of the adjacent uncorrngated parts of the sheet while the corrugations at one end are entirely above the uncorrugated marginal part of the sheet adjacent thereto for drainage purposes.

4. ln a railway car of the type described, the combination of the fixed portion of the car bottom constructed to provide a dumping opening, and a hinged door to close said opening formed of a metal sheet having pressed therein relatively long corrugations and shorter corrugations disposed in alternate arrangement, the crests of certain of said corrugations being substantially flush with the upper surface of the xed portion of the car bottom when the door is in its closed position.

ln combination with a railway car'having a door opening inthe bottom, a sheet metal door to close the same formed with a plurality of corrugations consisting of relatively long corrugations and shorter corrugations disposed in alternating arrangement across the door sheet, the portions of the relatively short .corrugations adjacent one of the `edges of said sheet projecting below the adjacent marginal parts of the sheet while the opposite ends of the corrugations stand substantially above the nncorrugated part of the marginal sheet adjacent thereto,

il. The combination with a railway car having door openings in the bottom, a sheet l metal door to close the same formed with a plurality of parallel corrugations consisting of relatively long corrugations and shorter corrugations dis osed in alternating arrangement and exten ing across the door sheet between opposite edges at right angles to said edges, the portions of certain of the corrngations adjacent one of said edges projecting below theadjacent marginal parts of the sheet while the opposite ends ot thel corrngations stand substantially above the nncorrugated part of the marginal sheet ad- 7. ln combination with a railway car havingr dumping opening in bottom, a

.ine

reagenti Sheet metal door to close the se formed with a depressed.- portion which extends to one edge lof the door sheet, said depressed portion having pressed therein corrugations upstanding therefrom which terminate within `the edges of the sheet and reject `beyond the depressed portion of 'saioijsheet 8. lncombination with a railway car having a dumping opening in the bottom, a sheet metal door to close the same formed with a depressed portion which`| extends to one edge of the door sheet, said depressed portion having pressed therein a plurality ot upstanding, parallel corrugations at substantially ,right angles to sald edge, which merge into the door sheet at opposite edges, the extremities of the corrugations adjacent one of the edges of the sheet being extended beyond the depressed portion of said sheet.

9. ln combination wlth a railway car havsheet metal door to close the'same formed with a depressed portion which extends along one edge of the ldoor sheet, said door being formed with corrngations which roject above the depressed portionot the oor sheet but below the other marginal portion thereof, and corrngations disposed in alter-pA nating arrangement with the rst mentioned corrngations formed to project above said other marginal portions ot' the sheet.

a dumping opening in the bottom, a'

panel l0e lin combination with, va railway car having a dumping opening in the bottom, a sheet metal door to vclose the same formed Iwith a depressed portion which extends along one edge of the door sheet,I leaving marginal portions along the other three edges which are in a higher plane, said sheet being oed with corrugations lprojecting entirely above the depre margins thereof and slightly above the plane of said other marginal portions and extending beyond said de ressed of the s eet. 4

l1. A door structure for railway cars of the dumping type comprising a sheet metal panel having marginal portions formed with rigidifying flanges one marginal portion of which is depressed below the other margins and a plurality of rigidiying corrugatlons extending across the sheet at right angles to said depressed margin and comprising rela'- tively long corrugatio'ns and shorter corrugations disposed 1n alternate alignment.

l2. A; door structure for railway cars of the-dumping type comprisin a sheet metal provided with rigidi yin marginal portions and relatively long rigi ifying ribs and shorter .ribs disposed in alternate arrangement across the' sheet.

(5l-ATH G. GILPIN.,

portions adjacent one edge f 

